Can't install latest blender on windows
From the manual:

Download the .zip or .exe for your architecture (64bit is preferable if your machine supports it).

The .exe will run an installer to choose where to place Blender and to configure MS-Windows to have an entry on the menu and to open .blend files with Blender. Administrator rights are needed to install Blender on your system.

Note:
With .zip you have to manually extract Blender to the desired folder, where you can double-click the executable to run Blender.

There is no installer to place Blender on the menu, but there is also no need for administrator rights. With this option it is possible to have multiple versions of Blender without conflicting, as they are not actually installed on the system.

https://www.blender.org/manual/getting_started/installing_blender/windows.html